Page 1 TECHNICAL CITROËN TRAINING MULTIPLEXED BSI OPERATING PRINCIPLE FOR THE XSARA PICASSO AND XSARA CITROËN UK LTD 221 BATH ROAD SLOUGH SL1 4BA _________________ DEALER PERSONNEL DEVELOPMENT AND TRAINING _________________ © CITROËN UK LTD. Reproduction whether partial or in full without written permission from Citroën UK Ltd is forbidden...
Page 3 DOCUMENT SUMMARY MULTIPLEXED BSI OPERATING PRINCIPLE for the XSARA PICASSO AND XSARA The aim of this document is to explain certain functions of the BSI (Built-in Systems Interface). After presenting multiplexing, the following subjects will be dealt with: Electrical functions of the XSARA and XSARA PICASSO. −...
Page 4: Table Of Contents
CONTENTS PARTS 1 MULTIPLEXING / BSI XSARA AND XSARA PICASSO CHAPTER 1 : MULTIPLEXING ..........PAGE BRIEF DEFINITION............... PAGE II - PURPOSE OF MULTIPLEXING ............. PAGE III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK..................PAGE IV - THE VAN PROTOCOL ..............
Page 5 CONTENTS PART 2 SIGNALLING XSARA AND XSARA PICASSO CHAPTER 1 : GENERAL ............PAGE FOREWORD ................. PAGE 33 II - GENERAL LAYOUT ............... PAGE 33 CHAPTER 2 : OPERATING PRINCIPLE ........PAGE INDICATOR FUNCTION..............PAGE 35 II - HAZARD WARNING LAMPS FUNCTION........PAGE 35 III - FAULTY BULB DETECTION FUNCTION ........
Page 6 CONTENTS PART 4 DRIVER'S INFORMATION XSARA PICASSO CHAPTER 1 : GENERAL ............PAGE FOREWORD ................PAGE 53 II - LAYOUT ..................PAGE 54 III - XSARA PICASSO CONTROL PANEL ........... PAGE 61 CHAPTER 2 : MESSAGES AND WARNINGS FUNCTION ..PAGE DISPLAY ..................
Page 7 CONTENTS PART 5 DRIVER'S INFORMATION XSARA CHAPTER 1 : GENERAL ............PAGE 103 FOREWORD ................. PAGE 103 II - LAYOUT..................PAGE 104 CHAPTER 2 : WARNING FUNCTION ........PAGE 107 LIST OF LEDS................PAGE 107 II - INTEGRATED BUZZER ..............PAGE 108 III - WARNING APPEARANCE CONDITIONS ........
Page 8 CONTENTS PART 6 VISIBILITY XSARA AND XSARA PICASSO CHAPTER 1 : GENERAL ............PAGE 119 FOREWORD ................PAGE 119 II - GENERAL LAYOUT ..............PAGE 120 CHAPTER 2 : OPERATING PRINCIPLE........PAGE 123 WINDSCREEN WIPER FUNCTION ..........PAGE 123 II - REAR WIPER FUNCTION.............
Page 9 CONTENTS PART 8 AUTOMATIC CLIMATE CONTROL XSARA PICASSO CHAPTER 1 : GENERAL ............PAGE 151 FOREWORD ................. PAGE 151 II - GENERAL LAYOUT ............... PAGE 152 III - LAYOUT DIAGRAM ............... PAGE 155 IV - DESCRIPTION OF THE USER DISPLAY AND CONTROLS..... PAGE 156 CHAPTER 2 : OPERATING PRINCIPLE ........
Page 10 CONTENTS PART 9 VEHICLE IMMOBILISATION XSARA AND XSARA PICASSO CHAPTER 1 : TRANSPONDER SYSTEM OPERATING PRINCIPLE ............PAGE 175 FOREWORD ................PAGE 175 II - GENERAL LAYOUT ..............PAGE 176 III - OPERATION................. PAGE 177 CHAPTER 2 : OPERATING PRINCIPLE OF THE FACTORY FITTED ANTI-INTRUSION ALARM....
Page 11 CONTENTS PART 10 RADIO AND COMPACT DISC CHANGER XSARA PICASSO CHAPTER 1 : GENERAL ............PAGE 199 FOREWORD ................. PAGE 199 II - GENERAL LAYOUT ............... PAGE 200 CHAPTER 2 : RADIO OPERATING PRINCIPLE....... PAGE 203 SWITCHING ON / OFF..............PAGE 203 II - RADIO ANTI-THEFT FUNCTION ............
Page 12 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 13 PART 1 MULTIPLEXING / BSI XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 14 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 15 Chapter 1 MULTIPLEXING BRIEF DEFINITION Multiplexing is different from previous electrical technology in that it involves transmitting several items of digital information between various devices on a single transmission channel, in the form of 2 wires. II - PURPOSE OF MULTIPLEXING Multiplexing is used to: •...
Page 16 Chapter 1 III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK XSARA PICASSO design 8080 8410 8415 * 0004 8500 8600 * XSARA design 8410 0004 8415 Key: The dotted lines represent a connection used only by the diagnostic function.
Page 17 Chapter 1 IV - THE VAN PROTOCOL The network consists of 2 wires, called: • Data, • Data B (Data bar). The Data B wire is so called because the voltage at its terminals is always opposite to the voltage on Data. Data Data B Two current levels are used to encode two distinct logical states.
Page 18 Chapter 1 Format of the communications message (frame): Only the rate of the Data line is represented as the Data B line is the opposite. A message in a multiplexed device is unambiguous. It is therefore not possible for an error to occur regarding the recipient nor the nature of the command to be performed.
Page 19: Parts
Chapter 1 LOCATION OF MULTIPLEXED ECUS XSARA PICASSO 8415 * 8410 8080 0004 8600 * 8500 XSARA 8415 8410 0004 Available as an accessory 8410 Radio Built-in Systems Interface 8415 CD changer 0004 Control panel / Multifunction screen 8500 Navigation 8080 Automatic climate control 8600...
Page 20: Part
Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 21: Network
Chapter 2 BUILT-IN SYSTEMS INTERFACE The Built-in Systems Interface (BSI) is an ECU which incorporates: • Interface electronics (relays, fuses, diagnostic socket, HF receiver) • Control electronics: The BSI is one of the masters of the VAN network, on which it controls communications between the ECUs •...
Page 22: And The Xsara
Chapter 2 FUNCTIONS CONTROLLED BY THE BSI ON THE XSARA PICASSO AND THE XSARA XSARA FUNCTION DETAILS XSARA PICASSO Signalling Indicator control Hazard warning lamps button acquisition Blown bulb detection Illumination of indicators in the event of an impact Signalling of the locked status of the vehicle Locking Locking / unlocking using the plip Locking / unlocking using the interior button...
Page 23: Driver's Information Xsara
Chapter 2 XSARA FUNCTION DETAILS XSARA PICASSO Driver's information Programmable maintenance indicator (through connection on BSI) Acquisition of external temperature Time base Signalling of door status Sidelamps on and key in ignition reminder Automatic gearbox safety warning Overspeed warning HF remote control battery worn warning Transponder fault warning Driving school pedal set warning Battery charge, alternator excitation fault warning...
Page 24: Part
Chapter 2 XSARA 0004 Key: single arrow = wire connection triple arrow = multiplexed connection. Available as an accessory 8410 Radio Built-in Systems Interface 8415 CD changer 0004 Control panel / Multifunction screen 8500 Navigation 8080 Automatic climate control 8600 Alarm Note: The connection numbers are used to associate these diagrams to the...
Page 25: Iii - Bsi Inputs
Chapter 2 III - BSI INPUTS A - SUPPLIES DESCRIPTION EMITTER TYPE XSP XS + accessories information Ignition switch - accessories - ignition position All or Nothing Supply to + accessories track for windscreen / Supply rear wash / wipe steering wheel stalk +ALT permanent power supply Alternator Supply...
Page 26: Part
Chapter 2 DESCRIPTION ORIGIN TYPE XSP XS Hazard warning lamps request Hazard warning lamps button All or Nothing Rear wiper request Wipers steering wheel stalk All or Nothing Windscreen wipers high speed request Wipers steering wheel stalk All or Nothing Windscreen wipers intermittent request Wipers steering wheel stalk All or Nothing...
Page 27: Iv - Bsi Outputs
Chapter 2 IV - BSI OUTPUTS A - WIRE OUTPUTS DESCRIPTION RECEIVER TYPE XSP XS + accessories supply for windscreen/rear wash/ Steering wheel stalk All or wipe steering wheel stalk Nothing Air conditioning compressor authorisation Engine ECU All or Nothing Rear right hand indicator control Rear right hand indicator All or...
Page 28: Part
Chapter 2 B - MULTIPLEXED OUTPUTS DESCRIPTION RECEIVER XSARA XSARA PIC. Fast BSI data Engine speed Control panel/MFS Instantaneous vehicle speed Control panel/MFS, Air conditioning, Radio CD 8, 9, 10 Mileage Control panel/MFS Fuel consumption Control panel/MFS Slow BSI data Day / Night status Control panel/MFS, Air conditioning, Radio 8, 9, 10, 11...
Page 29 Chapter 2 DESCRIPTION RECEIVER XSARA XSARA PIC. BSI CPL displays Front right hand door open Front left hand door open Rear right hand door open Rear left hand door open Boot open Consumption invalid (flowmeter fault) Range invalid (sender fault) Range calculation impossible (fuel level too low) MFS Distance travelled insufficient (less than 400 m since resetting)
Page 30: V - Location And Type Of The Connectors On The Bsi
Chapter 2 LOCATION AND TYPE OF THE CONNECTORS ON THE BSI CONNECTOR DESCRIPTION CHANNELS COLOUR Power Supply Connector to main harness GREY Power Connector to main harness GREEN Power Connector to passenger compartment harness BLACK Electronic Connector to main harness YELLOW Electronic Connector to main harness BROWN...
Page 31: Vi - Channel Allocation On The Bsi
Chapter 2 VI - CHANNEL ALLOCATION ON THE BSI BSI inputs/outputs Power part. • Allocation of pins of the Grey 2-way NG1 connector of the main harness. 1 - + permanent 2 - + alternator MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 ©...
Page 32 Chapter 2 • Allocation of pins of the Green 16-way SIGMA connector of the main harness. 8 - Output: Power supply of the VAN bus on main harness 7 - Output: Front left hand indicator control 6 - Output: Front right hand indicator control 5 - Output: + accessories for wash/wipe stalk 4 - Input: Lamps 3 - Input: Reverse gear switch...
Page 33 Chapter 2 • Allocation of pins of the Black 16-way SIGMA 2 connector of the passenger compartment harness. 8 - Output: Front electric window supply 7 - Output: Left hand repeater indicator control 6 - Output: Right hand repeater indicator control 5 - Output: Rear wiper control 4 - Output: Locking motors control 3 - Output: Unlocking motors control...
Page 34 Chapter 2 • Allocation of pins of the Yellow 26-way MQS 26 connector of the main harness. 1 - K diagnostic line serial connection 2 - Input: Vehicle speed information 3 - Input: Engine ECU serial connection for engine immobiliser 4 - Input: Engine speed information through engine ECU 5 - Output: Heated rear screen and door mirrors lamp control (except RFTA VAN)
Page 35 Chapter 2 • Allocation of pins of the Brown 12-way MQS connector of the main harness. 1 - Input: On board ECU scroll request 2 - Input: Navigation recall last message request 3 - For supplier use 4 - Output: Headlamp washer relay control Output: Sidelamp relay control (timed illumination) 5 - Output: Air conditioning compressor authorisation request to engine ECU...
Page 36 Chapter 2 • Allocation of pins of the Blue 26-way MQS connector of the passenger compartment harness. 1 - Output: Engine running 2 - Input: Locking request through lock 3 - Input: Unlocking request through lock 4 - Input: Hazard warning lamps request button 5 - Input: Front right hand door locking button control 6 - Input: Rear left hand door switch 7 - Input: Tailgate or boot switch...
Page 37: Vii - Operating Modes
Chapter 2 VII - OPERATING MODES A - NOMINAL MODE OR CUSTOMER MODE All functions are operational. This is the operating mode designed for normal vehicle use. B - STAND-BY MODE In this mode, there is no communications activity and ECU consumption is minimal.
Page 38: Viii - After-Sales Operations, Accessories
Chapter 2 VIII - AFTER-SALES OPERATIONS, ACCESSORIES A - GENERAL In the factory, an initialisation procedure is performed at the end of vehicle assembly in order to allow the various devices to recognise each other: • ignition key with integrated transponder and BSI, •...
Page 39 Chapter 2 D - REPLACEMENT OPERATIONS 1 - Customer confidential card The access code (4 characters) is given to the customer on a confidential card. It can be seen after removing the masking strip on the card. It is required for all maintenance procedures on the system. CITROËN IMPORTANT: Before adding or replacing parts, ensure that the customer is still in possession of his confidential card.
Page 40 Chapter 2 4 - Repairs ITEM TO BE ESSENTIAL ITEMS OPERATIONS TO BE REPLACED PERFORMED BSI ONLY * Customer's confidential card. Programming of access code. All vehicle keys. Programming of keys and HF New BSI. remote controls. Diagnostic tool. ENGINE ECU Customer's confidential card.
Page 41 Chapter 2 Below is a list of faults which can be returned by the BSI on the XSARA and the XSARA PICASSO: FAULT XSARA XSARA PICASSO +Accessories stuck on 0 Ultrasound unit supply - short circuit to earth Alternator +ignition on stuck on 0 Rain sensor Air conditioning –...
Page 42 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 43: Chapter 3 : Electricity
Chapter 3 ELECTRICITY LAYOUT DIAGRAM PFM001P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 44: Ii - Parts List
Chapter 3 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 45 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 46 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 47 PART 2 SIGNALLING XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 2 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 48 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 2 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 49: Chapter 1 : General
Chapter 1 GENERAL FOREWORD The left and right hand indicators and side repeaters can be controlled simultaneously or independently in the following order of priority: 1 Automatic illumination of hazard warning lamps in the event of an impact (XSARA PICASSO only). 2 Locking / unlocking using the HF remote control or the key.
Page 50 Chapter 1 COMPONENTS Built-in Systems Interface 0004 Control panel Steering wheel stalk Hazard warning lamps button Inertia switch Indicators and side repeaters Hazard warning lamps button LED CONNECTIONS N° SIGNAL TYPE Control of the lamp and buzzer Indicators activation request All or Nothing Hazard warning lamps activation request All or Nothing...
Page 51: Chapter 2 : Operating Principle
Chapter 2 OPERATING PRINCIPLE INDICATOR FUNCTION Function The BSI controls the direction indicators, the side repeaters and the LEDs on the control panel. Functional description The driver's request is acquired by the right or left hand indicator contacts when the ignition is on. II - HAZARD WARNING LAMPS FUNCTION A - ILLUMINATION OF THE HAZARD WARNING LAMPS BY PRESSING THE...
Page 52: Iii - Faulty Bulb Detection Function
Chapter 2 B - AUTOMATIC ILLUMINATION OF HAZARD WARNING LAMPS IN THE EVENT OF AN IMPACT Note: This function is only available on the XSARA PICASSO Function: The BSI controls the hazard warning lamps when an impact is detected. Functional description: Action Illumination of hazard warning lamps.
Page 53: Layout Diagram
Chapter 3 ELECTRICITY LAYOUT DIAGRAM PFM002P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 2 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 54: Ii - Parts List
Chapter 3 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 55 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 56 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 2 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 57 PART 3 INTERIOR LIGHTING XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 58 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 59: I - Foreword
Chapter 1 GENERAL FOREWORD The interior lighting consists of 2 interior lamps. They are activated by: • the 4 vehicle doors, • the tailgate on the XSARA PICASSO, • the interior lamp switches. Positions of an interior lamp switch: "Off" position "On"...
Page 60 Chapter 1 Layout diagram: Below is the illumination and extinguishing cycle for each interior lamp: • transitions to an illuminated state have priority, • progressive illumination / extinguishing transitions are possible, • there is no perceptible discontinuity. Progressive illumination of interior lamp Interior lamp illuminated Progressive extinguishing of interior lamp Interior lamp extinguished...
Page 61: Ii - General Layout
Chapter 1 II - GENERAL LAYOUT Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in Systems Interface Switches of the 4 doors (and tailgate on the Xsara Picasso). Interior lamp switches Ignition switch Front and rear interior lamps CONNECTIONS N°...
Page 62 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 63: Chapter 2 : Operating Principle
Chapter 2 OPERATING PRINCIPLE Interior lamp timer Function: To control: • the illumination duration of the interior lamps (10 minutes or 10 seconds), • the extinguishing of the interior lamps. Functional description: 10 minute 10 second Extinguishing timer timer Door/tailgate opening closing closed...
Page 64 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 65: Chapter 3 : Electricity
Chapter 3 ELECTRICITY LAYOUT DIAGRAM PFM003P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 66: Ii - Parts List
Chapter 3 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 67 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 68 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 3 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 69 PART 4 DRIVER'S INFORMATION XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 70 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 71: I - Foreword
Chapter 1 GENERAL FOREWORD This function is shared between four sub-functions: • Instrumentation function, • Messages and Warnings function, • Lighting function, • On-board ECU function. The control panel is at the centre of the Driver's Information function. The basic control panel (type B) is described in this section.
Page 72: Ii - Layout
Chapter 1 II - LAYOUT The control panel receives information along the wires and by communicating with the ECUs via the VAN network. 8415 8410 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in Systems Interface 0004 Control panel / MFS (LEDs + microprocessor) 8410 Radio 8415 CD changer available as an option...
Page 73 Chapter 1 A - INPUTS TO THE CONTROL PANEL/MULTIFUNCTION SCREEN (MFS) Wire inputs DESCRIPTION ORIGIN TYPE N° Low coolant level Level sensor All or nothing Parking brake status Switch All or nothing Mainbeam status Steering wheel stalk All or nothing Dipped beam status Steering wheel stalk All or nothing...
Page 74 Chapter 1 Multiplexed inputs BSI ⇒ CONTROL PANEL MFS Fast BSI data DESCRIPTION N° Engine speed Instantaneous vehicle speed Distance travelled Fuel consumption Slow BSI data DESCRIPTION N° Day / night status Night driving mode Control panel brightness level (Alarm on stand-by) Factory / Customer mode Reverse gear Economy mode...
Page 75 Chapter 1 BSI display DESCRIPTION N° Coolant temperature warning Brake fluid / hydraulic level warning Door(s) open warning, engine running Oil pressure warning Electronic brakeforce distributor (EBD) fault ABS fault EOBD fault Battery charge fault Headlamps left on reminder warning signal Key left in ignition reminder warning signal Overspeed warning signal Parking brake...
Page 76 Chapter 1 Additional BSI display DESCRIPTION N° Front right hand door open Front left hand door open Rear right hand door open Rear left hand door open Boot open Consumption invalid (flowmeter fault) Range invalid (sender fault) Range calculation impossible (fuel level too low) Distance travelled insufficient (less than 400 m since resetting) Journey distance insufficient (less than 400 m since...
Page 77 Chapter 1 CD changer ⇒ CONTROL PANEL/MFS DESCRIPTION N° CD changer event CD changer status Radio ⇒ CONTROL PANEL/MFS DESCRIPTION N° Radio event General radio status Specific radio status Multiplexed outputs Control panel/MFS ⇒ BSI Control panel status DESCRIPTION N° Oil pressure warning Night driving mode Parking brake...
Page 78 Chapter 1 MFS request DESCRIPTION N° Request to reset cumulative distance Request to reset cumulative journeys Request to maintain + comfort VAN MFS/CONTROL PANEL ⇒ radio DESCRIPTION N° Radio control MFS/CONTROL PANEL ⇒ CD changer DESCRIPTION N° CD changer control MULTIPLEXED BSI - XSARA PICASSO AND XSARA –...
Page 79: Iii - Xsara Picasso Control Panel
Chapter 1 III - XSARA PICASSO CONTROL PANEL A - FUNCTION The control panel has the following functions: • Acquisition of information from the sensors and VAN network, • Sending of data on the VAN network, • Display of on board ECU parameters on the multifunction screen (type B), •...
Page 80 Chapter 1 C - LEDS The control panel contains the following strip of LEDs: V10 V11 V12 V13 V14 V15 V16 FUNCTION Not used Left hand indicator LED Front fog lamp Rear fog lamp ABS fault Diesel pre-heating Battery charge Brake fault Oil pressure Diagnostic: side AIRBAG...
Page 81 Chapter 1 E - MULTIFUNCTION SCREEN, TYPE B The display is divided into four zones: Zone "j": display of the time and external temperature and other messages, Zone "k": display of the audio, CD changer and on board ECU settings, Zone "h": display of the "central locking"...
Page 82 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 83: Chapter 2 : Messages And Warnings Function
Chapter 2 MESSAGES AND WARNINGS FUNCTION DISPLAY Long messages are displayed in two stages in zones "a" and "b". Sequence 1 (called SEQ1) is displayed followed by sequence 2 (called SEQ2). The time for which the messages are displayed depends on their appearance priority.
Page 84: Iii - Warnings From Wire Information
Chapter 2 III - WARNINGS FROM WIRE INFORMATION TYPE OF APPEARANCE ASSOCIATED MESSAGE PRIORITY; WARNING CONDITIONS BUZZER ZONE "a" ZONE "b" Brake fluid / TOP_UP BRAKE_FLUID P1;V8;D3 +ig on* (V≥0) hydraulic level single AND fluid level warning sound pressure STOP P1;V9;D3* +ig on* AND Oil warning...
Page 85: Iv - Warnings From The Van Frames
Chapter 2 IV - WARNINGS FROM THE VAN FRAMES TYPE OF APPEARANCE ASSOCIATED MESSAGE PRIORITY; WARNING CONDITIONS NOISE ZONE" a" ZONE" b" Coolant STOP TEMPER- P1;V18;D3 +acc/+ig on* AND temperature ENGINE ATURE (repetitive T° ≥118°C warning sound) Battery charging BATTERY FAULT P1;V7;D3* +acc/+ig on*/...
Page 86 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 87: Chapter 3 : Instrumentation Function
Chapter 3 INSTRUMENTATION FUNCTION COOLANT TEMPERATURE GAUGE AND WARNING FUNCTION A - GENERAL Table of correspondence between Coolant temperature / zone illuminated: ZONE TEMPERATURE °C FIXED T≥ 60 T≥ 75 T≥ 100 T≥ 110 T≥ 115 Warn- MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 ©...
Page 88 Chapter 3 B - LAYOUTS 1 - EW7J4, DW10TD and TU5JPL4 engines 1320 0004 1220 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in systems interface 0004 Control panel (LEDs + microprocessor) 1220 Temperature sensor 1320 Engine management ECU Signal type: 1 - Current depending on temperature.
Page 89 Chapter 3 2 - TU5JPL3 engine without air conditioning 4025 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in systems interface 0004 Control panel (LEDs + microprocessor) 4025 Temperature sensor + coolant thermoswitch Signal type: 4 - Current depending on temperature.
Page 90 Chapter 3 3 - TU5JPL3 engine with air conditioning 1220 1220 8010 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in systems interface 0004 Control panel (LEDs + microprocessor) 1220 Temperature sensor 8010 Coolant temperature housing Signal type: 6 - Current depending on temperature 7 - Current depending on temperature...
Page 91: Operating Phases/Specific Operating Cases
Chapter 3 C - OPERATING MODES 1 - Operating phases Nominal operation: see layouts and correspondence table. • DW10TD, EW7J4 and TU5JPL4 engines: The engine coolant temperature sensor (variable resistor) is connected to the engine management ECU. This converts the signal from the sensor into a variable frequency signal and sends it to the BSI.
Page 92: Ii - Fuel Level Gauge Function
Chapter 3 II - FUEL LEVEL GAUGE FUNCTION A - GENERAL The following table gives the amount of fuel remaining as a function of the segment illuminated on the gauge: ⇒ petrol vehicle ZONE V17: WARNING j LITRES V< 6 12.5 18.5 ≤...
Page 93 Chapter 3 B - LAYOUT 4315 1320 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in systems interface 0004 Control panel (LEDs + microprocessor) 1320 Engine management ECU 4315 Fuel sender Signal type: 10 - Current depending on level of fuel in the tank 11 - Variable frequency signal depending on fuel flow 12 - Low fuel information signal 13 - VAN frame containing the gross fuel level given by the sender, the...
Page 94 Chapter 3 C - OPERATING MODES 1 - Operating phases • When the ignition is switched on. The control panel compares the last fuel level displayed with the level indicated by the fuel sender (variable resistor fitted with a float). In the event of a significant difference, the gross level information is displayed otherwise the last fuel level displayed is given.
Page 95: Iii - Speedometer Function
Chapter 3 III - SPEEDOMETER FUNCTION A - GENERAL The instantaneous speed of the vehicle is displayed on the digital displays of the instrumentation screen. The driver can access the choice of measurement units (KM/H or MILES). The units are changed using the menu of the multifunction screen (refer to the Clock/Date/Temperature function).
Page 96 Chapter 3 C - OPERATING MODE 1 - Operating phase Nominal operation: see layout The speed sensor (located on the gearbox) supplies the BSI with a variable frequency signal. The BSI calculates the instantaneous speed of the vehicle and encodes it in a VAN frame.
Page 97: Iv - Mileometer Function
Chapter 3 IV - MILEOMETER FUNCTION A - GENERAL Role: mileometer The mileometer consists of two digital displays: • the main mileometer, • the tripometer. B - LAYOUT Refer to the speedometer layout. C - OPERATING MODE The BSI calculates the total distance travelled since the vehicle was first used from a signal supplied by the speed sensor.
Page 98: V - Maintenance Indicator Function
Chapter 3 MAINTENANCE INDICATOR FUNCTION A - GENERAL 1 - Role The aim of the maintenance indicator is to improve the service to the customer by automatically showing when the next servicing operation is due. Interval between maintenance operations. Engine Usage mode frequency of maintenance operations*...
Page 99 Chapter 3 2 - Display Zone "h": maintenance indicator. Every time the engine is started, the distance remaining is displayed on the mileometer. LED V19 either illuminates or not. Service interval Service interval Service interval >2000 Km <2000 Km exceeded Display 0 - 2s More...
Page 100 Chapter 3 C - OPERATING MODES 1 - Nominal mode The BSI calculates the total distance travelled from the signal supplied by the speed sensor. It then encodes the value in a VAN frame and sends it to the control panel. The control panel calculates the distance remaining to be travelled before the next service using the following parameters: •...
Page 101 Chapter 3 3 - Initialising the maintenance indicator The initialisation procedure is used to assign a new mileage value and a new time value to the system. The procedure is as follows: 1 - Press the Tripometer reset button. 2 - Switch on the ignition. The display shows a key (LED V19) and a 10 second counter starts to count down.
Page 102: Vi - Clock / Date / Temperature Function
Chapter 3 VI - CLOCK / DATE / TEMPERATURE FUNCTION A - GENERAL When these parameters are lost (i.e. after disconnecting the battery), the time displayed starts at "12: 00 PM" and the date displayed by default is 01 - 01 - 99.
Page 103 Chapter 3 Parameters (in the scrolling order): Parameters Description Value of the parameter to be displayed parameter to be displayed Languages FRANCAIS; ENGLISH; DEUTSCH; ITALIANO; ESPANOL; etc. Hours (tens then units): 0 (or 12 HOUR 12 AM (or 12 for 24H AM depending on configuration) configuration) Minutes (tens then units): 00...
Page 104 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 105: Chapter 4 : Lighting Function
Chapter 4 LIGHTING FUNCTION RHEOSTAT FUNCTION A - GENERAL The + and - rheostat buttons are used to vary the brightness level of the lighting of the displays, except that of the warning LEDs. B - LAYOUT 0004 8410 8080 Key: single arrow = wire connection triple arrow = multiplexed connection...
Page 106: Ii - Night Driving Function
Chapter 4 C - OPERATING MODES 1 - Principle The control panel encodes the brightness level in a VAN frame to be sent to the BSI. The BSI transmits the information to the air conditioning and radio ECUs (RD2 only). 2 - downgraded mode If one of the buttons is jammed, an intermediate brightness level is used by default.
Page 107 Chapter 4 • DEACTIVATION If an event occurs, this causes the zone in question to be re-illuminated in accordance with the table below: EVENT DISPLAY DURATION Brief press on one of the 4 All information on the Until button "a" is pressed buttons (user request) control panel and again...
Page 108 Chapter 4 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 109: Chapter 5 : On-Board Ecu Function
Chapter 5 ON-BOARD ECU FUNCTION GENERAL A - ROLE The on-board ECU controls the display of the following information: • Instantaneous consumption, • Average consumption, • Range, • Average speed, • Total distance travelled, • Overspeed warning. B - DISPLAY Pressing the on-board ECU button briefly (located on the end of the stalk on the steering wheel) is used to switch to the next display.
Page 110: Ii - Layout
Chapter 5 II - LAYOUT 1320 7205 1620 4315 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in systems interface 0004 Control panel (LEDs + microprocessor) 1320 Engine management ECU 1620 Speed sensor 4315 Fuel sender 7205 On-board ECU scroll switch Signal type:...
Page 111: Iii - Operating Modes
Chapter 5 III - OPERATING MODES Nominal operation: The BSI calculates the "range" with the fuel consumption and the amount of fuel remaining supplied by the control panel. After acquiring the signal from the speed sensor, the BSI calculates the following parameters: •...
Page 112 Chapter 5 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 113: Chapter 6 : Electricity
Chapter 6 ELECTRICITY LAYOUT DIAGRAM A - COOLANT TEMPERATURE WARNING AND GAUGE - TU5JP PFM004P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 114 Chapter 6 B - COOLANT TEMPERATURE WARNING AND GAUGE - DW10 PFM005P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 115 Chapter 6 C - PETROL LEVEL GAUGE - EW7 PFM006P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 116: Ii - Parts List
Chapter 6 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 117 Chapter 6 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 118 Chapter 6 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 119 PART 5 DRIVER'S INFORMATION XSARA MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 120 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 121: I - Foreword
Chapter 1 GENERAL FOREWORD The control panel is normal in appearance but several of its functions are multiplexed (mileometer, etc). Refer to the tables corresponding to the layout. MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 122: Layout
Chapter 1 II - LAYOUT The control panel receives information along the wires and by communicating with the ECUs via the VAN network. 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in systems interface 0004 Control panel (LEDs + microprocessor) Pressure switch Oil level sensor...
Page 123 Chapter 1 CONNECTIONS N° Signal Type Low oil pressure All or nothing Low coolant level All or nothing Sidelamps status All or nothing Dipped beam status All or nothing Front airbag fault All or nothing Side airbag fault All or nothing Front and rear fog lamps control All or nothing Water in diesel*...
Page 124 Chapter 1 CONNECTIONS N° Signal Type Engine speed information Vehicle speed information Distance information Coolant temperature information Factory/customer mode Ignition key position Economy mode Engine running Coolant temperature warning Door open, engine running EOBD/Engine management fault Battery charge fault Electronic engine immobiliser system fault Illumination of indicator LEDs Lamps on reminder warning Key in ignition reminder warning...
Page 125: Chapter 2 : Warning Function
Chapter 2 WARNING FUNCTION LIST OF LEDS V6/V26 FUNCTION Rear fog lamp Front fog lamp Brake pad wear indicator* Coolant temperature warning Engine management diagnostic Coolant level Seatbelt Diesel pre-heating Transponder fault Dipped beam Main beam Water in diesel Low fuel warning Side airbag Front airbag Rear screen...
Page 126: Integrated Buzzer
Chapter 2 II - INTEGRATED BUZZER The buzzer integrated into the control panel produces 4 types of sound: • "Relay clicking" type sound N1, • "Intermittent" type sound N2, • "Continuous" type sound N3, • "Intermittent sound at twice the speed of N2" type sound N4. III - WARNING APPEARANCE CONDITIONS A - WARNINGS FROM WIRE INFORMATION LED;...
Page 127 Chapter 2 B - WARNINGS FROM VAN FRAMES LED; NOISE TYPE OF WARNING APPEARANCE CONDITIONS Lamps on reminder Headlamps on AND driver's door warning open (+acc/+ig on missing) Key in ignition reminder Key present warning (+acc/+ig on missing) AND driver's door open Auto gearbox position Key in position S or not inserted AND...
Page 128 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 129: Chapter 3 : Instrumentation Function
Chapter 3 INSTRUMENTATION FUNCTION When the ignition is switched on, the digital display shows: • for 2 seconds: the maintenance indicator • for 5 seconds maximum: the oil level gauge • and finally: the mileometer (until the ignition is switched off) MAINTENANCE INDICATOR A - GENERAL 1 - Interval between maintenance operations...
Page 130 Chapter 3 B - FUNCTIONAL DESCRIPTION The BSI calculates the total distance driven from the signal supplied by the speed sensor. It then sends this to the control panel via the VAN network. The control panel calculates the distance remaining to be travelled before the next service using: •...
Page 131: Oil Level Gauge
Chapter 3 II - OIL LEVEL GAUGE General The amount of oil left in the engine is displayed in accordance with the graphics below for a maximum of 5 seconds: The number of squares illuminated is proportional to the potential difference at the terminals of the oil level sensor: CORRESPONDING SCREEN...
Page 132: Mileometer
Chapter 3 III - MILEOMETER A - GENERAL The control panel has two mileometer lines • 2 tripometers called a and b (zone "b"). − switch from a to b by briefly pressing the left hand button, − reset them by pressing and holding the left hand button. •...
Page 133: Chapter 4 : Repairing The Control Panel
Chapter 4 REPAIRING THE CONTROL PANEL READING AND ERASING FAULTS Using the diagnostic tool, the following points can be read: • identification of the PSA N° and the development index of the control panel, • communications faults on the multiplexing, •...
Page 134: Reading The Following Parameters
Chapter 4 IV - READING THE FOLLOWING PARAMETERS Control panel: • viewing the activation status of certain LEDs (ABS, automatic gearbox, AIRBAG), • viewing maintenance type (missing/present, classic/developed, normal/severe). • fuel sender and coolant temperature sender table. All or nothing and other inputs on the control panel: •...
Page 135 PART 6 VISIBILITY XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 136 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 137: I - Foreword
Chapter 1 GENERAL FOREWORD The Built-in Systems Interface controls the visibility function: FUNCTION XSARA XSARA PICASSO Control of the windscreen wipers linked to the vehicle speed without rain sensor Windscreen wipers with rain sensor Intermittent wipe mode of the rear wiper linked to vehicle speed and windscreen wiper mode Management of wiper parked positions Protection of wiper motors...
Page 138: Ii - General Layout
Chapter 1 II - GENERAL LAYOUT 8080 COMPONENTS BSI Built-in Systems Interface. 8080 Automatic climate control (RFTA) on XSARA PICASSO only. Heated rear screen switch (without RFTA) Windscreen wiper motor. Rear screen wiper. Steering wheel stalk Rain sensor (XSARA only) Windscreen wiper motor Rear wiper motor De-icing LEDs of the heated rear screen and door mirrors (without RFTA...
Page 139 Chapter 1 CONNECTIONS n° Signal Type Heated rear screen activation request (without RFTA) All or nothing Parked position information of windscreen wiper motor All or nothing Parked position information of rear wiper motor All or nothing Windscreen washer request All or nothing Rear screen washer request All or nothing Windscreen wiper intermittent wipe request...
Page 140 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 141: I - Windscreen Wiper Function
Chapter 2 OPERATING PRINCIPLE WINDSCREEN WIPER FUNCTION A - BASIC FUNCTIONS Function: The wiper stalk for the windscreen wiper function provides the driver with the choice between several control options: CONTROL DESCRIPTION Windscreen wash/wipe control Used to wipe the screen continuously when the screen washer is activated.
Page 142 Chapter 2 B - CONTROLLING THE WINDSCREEN WIPERS LINKED TO VEHICLE SPEED WITHOUT RAIN SENSOR This function contains 2 sub-functions which relate only to the XSARA PICASSO: FUNCTION OPERATION Intermittent mode linked to vehicle When the windscreen wipers are speed operating at intermittent speed, the vehicle speed information is used to adjust the parked time between 2...
Page 143: Ii - Rear Wiper Function
Chapter 2 II - REAR WIPER FUNCTION On the Xsara and Xsara Picasso, the BSI controls a standard rear wiper (single motor). A - BASIC FUNCTIONS Function: The rear wiper function has 3 operating modes: OPERATING MODE DESCRIPTION Wash / wipe control Used to wipe the screen continuously when the rear washer is activated.
Page 144: Iii - Management Of Wiper Parked Positions
Chapter 2 III - MANAGEMENT OF WIPER PARKED POSITIONS Function: CONDITION FUNCTION Ignition on When the wipers are switched off, all wipe cycles in progress are completed. The wipers are systematically returned to the parked position at slow speed. When the ignition is switched off The windscreen or rear wipers stop immediately, regardless of the position of the wipers and the wiper stalk at the...
Page 145: Vi - Headlamp Washer Timer
Chapter 2 VI - HEADLAMP WASHER TIMER This function exists on the XSARA only. Function: When the windscreen washer control is activated and if the dipped beam headlamps are on, the BSI controls the headlamp washer operating timer. The dipped beam information is distributed on the Comfort VAN network by the control panel.
Page 146 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 147: Chapter 3 : Electricity
Chapter 3 ELECTRICITY LAYOUT DIAGRAM PFM007P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 148: Ii - Parts List
Chapter 3 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 149 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 150 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 6 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 151 PART 7 LOCKING / UNLOCKING XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 7 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 152 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 7 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 153: I - Foreword
Chapter 1 GENERAL FOREWORD Control devices: XSARA PICASSO XSARA BSI with integrated HF receiver BSI with integrated HF receiver Declutchable locks on both front doors Declutchable locks on both front doors One main key with transponder One main key with transponder One key with remote control and One key with remote control and transponder...
Page 154 Chapter 1 Viewing device: • "System status LED" for viewing the locked status, ignition off (in the hazard warning lamps button, on the XSARA PICASSO only), • use of indicators, • symbol for viewing the locking status, ignition on (XSARA PICASSO only), •...
Page 155 Chapter 1 The BSI controls the locking / unlocking function: FUNCTION XSARA XSARA PICASSO Locking / unlocking using internal button Opening of boot using electric button Unlocking in the event of an impact Deadlocking using the key Deadlocking using the plip Rebound function Automatic locking Locking / unlocking using the key...
Page 156: Ii - General Layout
Chapter 1 II - GENERAL LAYOUT 6232 0004 COMPONENTS Built-in Systems Interface with integrated HF receiver 0004 Control panel 6232 High frequency emitter for locking doors. Boot opening button Central locking button Switches of the 4 doors (door status) Boot switch Inertia switch (Xsara Picasso) Contacts of 2 front locks (key) Interior opening control of front doors (+ locking buttons on the doors...
Page 157 Chapter 1 CONNECTIONS n° Signal Type Vehicle locking status information (for symbol on the instrument panel) HF plip batteries worn warning Door open, engine running warning Door status information Control of indicators Locking / unlocking / deadlocking request by plip Encrypted HF Boot opening request All or nothing...
Page 158 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 7 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 159: I - Locking / Unlocking
Chapter 2 OPERATING PRINCIPLE LOCKING / UNLOCKING A - LOCKING / UNLOCKING USING THE KEY Function: This function consists of locking or unlocking the vehicle using the key by operating the locks of the front doors. Functional description: FUNCTION LOCKING UNLOCKING Action the BSI controls locking...
Page 160 Chapter 2 B - LOCKING / UNLOCKING USING THE PLIP Function: This function consists of locking or unlocking the vehicle, when the ignition is off, following an order from the HF remote control (plip). Functional description: FUNCTION LOCKING UNLOCKING Action the BSI controls locking the BSI controls unlocking IF condition...
Page 161 Chapter 2 C - LOCKING / UNLOCKING USING THE INTERIOR BUTTON Function: This function consists of locking the vehicle following a request from the user by pressing the locking button located on the dashboard. All the doors and tailgate/boot will be alternately locked or unlocked every time the button is pressed.
Page 162 Chapter 2 D - OPENING THE BOOT USING THE ELECTRIC BUTTON Function: This function consists of controlling the boot lock actuator by pressing the electric boot opening control button (located on the boot). Functional description: FUNCTION UNLOCKING THE BOOT USING THE BUTTON Action the BSI controls unlocking of the tailgate, then illuminates the boot lamp...
Page 163 Chapter 2 F - AUTOMATIC RE-LOCKING Function: This function consists of preventing the vehicle from being left unlocked due to negligence. Functional description: FUNCTION RE-LOCKING Action the BSI automatically relocks the vehicle IF condition no door has been opened within 30 seconds of unlocking the vehicle.
Page 164 Chapter 2 H - PROTECTION OF LOCK MOTORS Function: To prevent overheating, the BSI protects the lock actuators (doors and boot). Functional description: The vehicle is unlocked during the motor protection function. FUNCTION PROTECTION OF LOCK MOTORS Action The lock actuators are prevented from operating for 30 seconds IF condition 10 successive locking/unlocking operations have been...
Page 165: Ii - Deadlocking
Chapter 2 II - DEADLOCKING Unlocked status Locking Locked status Unlocking Deadlocked status Deadlocking Unlocking Note: It is not possible to switch from the deadlocked status to the locked status. A - DEADLOCKING USING THE KEY Function: This function consists of deadlocking the vehicle, using the key, after locking it by operating the front door locks when the ignition is off.
Page 166 Chapter 2 B - DEADLOCKING USING THE PLIP Function: This function consists of deadlocking the vehicle after locking it, when the ignition is off, following an order from the HF remote control. Functional description: FUNCTION DEADLOCKING USING THE PLIP Action the BSI deadlocks the vehicle IF condition the locking button on the HF remote control is pressed...
Page 167 PART 8 AUTOMATIC CLIMATE CONTROL XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 168 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 169: I - Foreword
Chapter 1 GENERAL FOREWORD The automatic climate control system allows the user to control the operation of the air conditioning-heating system automatically, by adjusting: • the air flow (blower motor), • the air temperature (mixing), • the distribution of air in the passenger compartment (distribution), •...
Page 170: Ii - General Layout
Chapter 1 There are two types of air conditioning management, depending on the engine: 1.6i (TU5JP engine) 1.8i (EW7J4 engine) 2.0 TD (DW10TD engine) Type C Type D Type C: the engine management ECU does not control the engine cooling. The engine ECU is called "non FRIC".
Page 171 Chapter 1 COMPONENTS Built-in Systems Interface 1320 Engine management ECU 8080 Automatic climate control (RFTA) Heater matrix coolant temperature sensor Passenger compartment temperature sensor Refrigerant pressure sensor Evaporator temperature sensor Alternator External air temperature sensor Engine coolant temperature sensor Vehicle speed sensor Heated rear screen Heated door mirrors Air conditioning compressor...
Page 172 Chapter 1 CONNECTIONS n° Signal Type Heater matrix coolant temperature Analogue Passenger compartment temperature Analogue User instructions (temperature, operating mode) All or nothing Refrigerant pressure Analogue Evaporator temperature Analogue Alternator output voltage (engine running Analogue information) External air temperature Analogue Coolant temperature (for non FRIC engine ECU) Analogue Vehicle speed...
Page 173: Iii - Layout Diagram
Chapter 1 III - LAYOUT DIAGRAM 8080 CITROËN Cold air circuit Temperature adjustment Warm air circuit Air distribution in passenger comp. 8080 Air conditioning Engine Pressure relief valve Heater matrix Capacitor Evaporator Compressor MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 ©...
Page 174: Iv - Description Of The User Display And Controls
Chapter 1 IV - DESCRIPTION OF THE USER DISPLAY AND CONTROLS A - USER CONTROLS N° CONTROL DESCRIPTION Distribution Used to adjust the distribution of air using one of the various preset flap positions (footwells, footwells-face, face, footwells- demisting, windscreen) Blower motor Controls the power of the air blower motor Visibility...
Page 175 Chapter 1 B - DISPLAY The display is incorporated into the air conditioning control panel. It is used for: • viewing the user choices and system status, • providing feedback about the actions performed to the user, • warning of any system faults. Brightness of the LEDs (1) The displays have a fixed brightness by day which can be dimmed at night.
Page 176 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 177: I - Compressor Management Function
Chapter 2 OPERATING PRINCIPLE COMPRESSOR MANAGEMENT FUNCTION The compressor is controlled by the BSI. It takes into account: • the compressor engaging request (A/C), • the icing up safety of the evaporator, • the air conditioning pressure, • the engine speed, •...
Page 178 Chapter 2 B - EVAPORATOR ICING UP SAFETY DEVICE The evaporator icing up safety device defines the rules for engaging and cutting off the compressor depending on: • evaporator temperature, • external temperature. Evaporator temperature as a function of external temperature: -6°C 10°C 20°C...
Page 179 Chapter 2 C - AIR CONDITIONING PRESSURE SAFETY DEVICE The BSI cuts off the compressor in the event of: • high pressure (risk of damaging the circuit), • low pressure (probability of a leak). Detection is performed by a 4 level pressure switch. To prevent the compressor from being successively engaged, waiting times are set: COMPRESSOR CUT-OFF...
Page 180 Chapter 2 Example: Engine speed as a function of time. max - max + Engine speed = 6250 rpm max - Engine speed = 5650 rpm Compressor forbidden Compressor engaged Compressor cut-off 5 second timer before re-engaging Compressor engaged MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 ©...
Page 181 Chapter 2 E - ENGINE COOLANT TEMPERATURE COMPRESSOR CONTROL If the engine coolant temperature is too high, compressor operation is controlled by the BSI. The compressor is forbidden for a coolant temperature above 112°C. It is authorised to re-engage if the coolant temperature is below 109°C and if the previous cut-off due to coolant temperature was more than one minute ago.
Page 182: Ii - Additional Electric Heating Function
Chapter 2 II - ADDITIONAL ELECTRIC HEATING FUNCTION Function: For DW10TD engines (HDi), heating resistors are placed in the engine cooling circuit. This allows a sufficient heat source to be obtained to operate the air conditioning, despite the slow rise in engine temperature. Functional description: The engine ECU requests the additional heating depending on the following information:...
Page 183: Iv - Downgraded Modes
Chapter 2 IV - DOWNGRADED MODES Faults in the components below lead to a system operation which, depending on the case: • bypasses the faulty component, • prevents certain functions. An ECU considers there to be a fault when the value transmitted by one of the components is outside fixed limits.
Page 184: V - Diagnostics
Chapter 2 DIAGNOSTICS Below are the components which can undergo a diagnostic procedure and the data received: COMPONENT ACCESSIBLE BY DIAGNOSTICS DATA RECEIVED Evaporator sensor output Open circuit Short circuit Air conditioning pressure safety input Short circuit to earth Air conditioning pressure signal Open circuit Signal validity Coolant temperature range...
Page 185: I - Layout Diagram - Tu5Jp
Chapter 3 ELECTRICITY LAYOUT DIAGRAM - TU5JP PFM008P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 186: Iii - Layout Diagram - Ew7
Chapter 3 III - LAYOUT DIAGRAM - EW7 PFM009P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 187: V - Layout Diagram - Dw10
Chapter 3 LAYOUT DIAGRAM - DW10 PFM010P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 188: Iv - Parts List
Chapter 3 IV - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 189 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 190 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 191: Vehicle Immobilisation Xsara And Xsara Picasso
PART 9 VEHICLE IMMOBILISATION XSARA AND XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 192 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 193: Chapter 1 : Transponder System Operating Principle
Chapter 1 TRANSPONDER SYSTEM OPERATING PRINCIPLE FOREWORD The role of this function is to protect the vehicle: • by electronically locking the engine management ECU - on petrol and HDi engines, • by electronically locking the diesel pump electrovalve - on XUD engines. The system consists of: •...
Page 194: Ii - General Layout
Chapter 1 II - GENERAL LAYOUT 1320 8208 8606 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in Systems Interface (BSI) 0004 Multifunction Screen (MFS) 1320 Engine management ECU 8208 Key-transponder assembly 8606 "System status" LED CONNECTIONS n°...
Page 195: Iii - Operation
Chapter 1 III - OPERATION A - SYSTEM COMPONENTS Transponder: An analogue unit, located in the top of the ignition switch, sends a signal to the ignition key. This is fitted with a responder label which disrupts the signal emitted by the analogue unit. The modification to the signal allows the analogue unit to transmit the key code (responder label) to the BSI.
Page 196 Chapter 1 B - LOCKING FUNCTION Functional description: ACTION THE BSI CONTROLS LOCKING IF condition the key is removed from the ignition switch AND the ignition has been off for > 10 secs. OR condition the key is in the OFF position AND the ignition has been off for >...
Page 197: I - Foreword
Chapter 2 OPERATING PRINCIPLE OF THE FACTORY FITTED ANTI-INTRUSION ALARM FOREWORD Note: The factory fitted alarm is only available on the XSARA. The role of this function is to protect the vehicle against intrusions. Protection is provided by Perimetric and Volumetric monitoring. This alarm is not multiplexed as it is inside the BSI.
Page 198: Ii - General Layout
Chapter 2 II - GENERAL LAYOUT COMPONENTS Door, bonnet and boot switches Volumetric suppression button Ultra sound unit HF remote control Indicators and side repeaters System status LED Siren Ultra sound unit Display LED CONNECTIONS n° Signal Type Door status information All or nothing Volumetric suppression request All or nothing...
Page 199: Iii - Operation
Chapter 2 III - OPERATION A - OPERATING MODES The anti-intrusion alarm has 3 operating modes: MODE DESCRIPTION Armed mode Vehicle protected Disarmed mode Vehicle not protected Triggered mode Signalling an intrusion B - ARMING / DISARMING Arming The vehicle is protected only when it is deadlocked using the HF remote control.
Page 200 Chapter 2 C - PERIMETRIC PROTECTION This protection monitors: • the doors, • the boot, • the bonnet, • the + accessories position, • the + ignition on position, • the + battery position. Perimetric protection is active 5 seconds after the alarm is armed. Case of one of the doors or boot or bonnet not correctly closed •...
Page 201 Chapter 2 D - VOLUMETRIC PROTECTION This protection monitors the volume of the passenger compartment. It is active 45 seconds after the alarm is armed. 1 - Triggering volumetric protection: An intrusion is detected by the ultra sound sensor module. All significant variations in passenger compartment volume trigger the alarm.
Page 202 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 203: Chapter 3 : Operating Principle Of The After-Sales Fitted Anti-Intrusion Alarm
Chapter 3 OPERATING PRINCIPLE OF THE AFTER-SALES FITTED ANTI-INTRUSION ALARM FOREWORD The aim of this function is to be able to incorporate an after-sales anti-theft alarm into the vehicle (Xsara or Xsara Picasso). The BSI communicates with the alarm unit via the VAN network. This alarm offers the same protection as the factory fitted alarm (optional on the XSARA).
Page 204: Ii - General Layout
Chapter 3 II - GENERAL LAYOUT 8600 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in Systems Interface 8600 Autonomous alarm unit Boot opening switch (Xsara only) Bonnet opening switch Volumetric suppression button Ultra sound sensors Connector to the BSI controlling the interior lamps Ignition switch Indicators and side repeaters...
Page 205: Iii - Operation
Chapter 3 III - OPERATION A - PERIMETRIC PROTECTION The information about the status of the doors, bonnet and boot is acquired by the interior lamp control: if, after a time, the interior lamp or lamps are extinguished, the vehicle is considered to be closed. If the bulbs in the interior lamps are missing or faulty, the alarm is not affected: the information is taken from the command sent by the BSI.
Page 206 Chapter 3 2 - Arming The LED flashes during the volumetric protection timer at a frequency of 25 Hz, then at a frequency of 1 Hz until it is disarmed. If volumetric protection is cancelled, the LED flashes immediately at a frequency of 1 Hz until it is activated.
Page 207 Chapter 3 D - SPECIFIC OPERATIONS IMPORTANT: When fitting an after-sales alarm, the BSI must be programmed to prevent the indicators from being controlled when the doors are locked/unlocked. In this case, the alarm controls signalling. Opening the vehicle with the key: If the vehicle is opened using the key, the alarm is triggered.
Page 208 Chapter 3 Fitting / removing the alarm: When fitting the alarm, disconnect the battery. After the operation: • Reconnect the battery, • Enter the "EMERGENCY CODE", • Switch on the ignition for 10 seconds, • Switch off the ignition. The siren is activated. IMPORTANT: When working on the alarm, the battery must be disconnected throughout the operation.
Page 209: Status Led
Chapter 4 OPERATING PRINCIPLE OF THE SYSTEM STATUS LED Note: The system status LED is only fitted on the XSARA PICASSO. FUNCTION Visible from the outside of the vehicle, the system status LED is used to view the protection status of the vehicle depending on: •...
Page 210 Chapter 4 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 211: Chapter 5 : Electricity
Chapter 5 ELECTRICITY LAYOUT DIAGRAM TRANSPONDER PFM011P MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 212: Ii - Parts List
Chapter 5 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 213 Chapter 5 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 214 Chapter 5 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 215 PART 10 RADIO AND COMPACT DISC CHANGER XSARA PICASSO MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 216 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 217: I - Foreword
Chapter 1 GENERAL FOREWORD The XSARA PICASSO has 2 types of radio: RB2 = Radio receiver fitted with a Basic mechanical cassette plate with split screen RD2 = Radio receiver fitted with a Compact Disc player with split screen • They have a split screen located in the control panel. •...
Page 218: Ii - General Layout
Chapter 1 II - GENERAL LAYOUT 0004 8500 8413 8415 8410 8402 8420 8425 8430 8435 8440 8445 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS Built-in Systems Interface 8420 Speaker on front left hand door 0004 MultiFunction Screen 8425 Speaker on front right hand door 8402 Aerial...
Page 219 Chapter 1 CONNECTIONS n° Signal Type Request to change radio and CD changer status All or nothing Vehicle speed + VIN + brightness/contrast level Output signal (possibly function of vehicle speed) Analogue CD audio input Analogue Navigation audio input Analogue Change of status of CD changer CD changer status Navigation status...
Page 220 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 221: Chapter 2 : Radio Operating Principle
Chapter 2 RADIO OPERATING PRINCIPLE SWITCHING ON / OFF A - GENERAL DESCRIPTION The radio is switched on and off by: • pressing the "ON" button on the front of the radio, • switching the ignition on or off*, • inserting a CD when the + accessories is present (RD2). * If the radio was on before the ignition was switched off (vehicle stationary), the radio will work when the + accessories reappears.
Page 222: Ii - Radio Anti-Theft Function
Chapter 2 II - RADIO ANTI-THEFT FUNCTION The radios do not have an LED which flashes when the vehicle is stationary. The anti-theft protection device is provided in the form of an identification code. It consists of the last 8 characters of the VIN, memorised by the BSI and the radio. Note: Radios are supplied by the Replacement Parts Division with a memorised VIN code.
Page 223: V - Thermal Protection
Chapter 2 THERMAL PROTECTION The radios have dynamic maximum volume limitation strategies, which depend on the rise in temperature in the units. Note: RD2 radios limit the volume without altering the volume displayed on the screen. RB2 radios only display the change in volume if the user performs a voluntary action (reduction in maximum volume from 30 to xx).
Page 224 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 225: Chapter 3 : Electricity
Chapter 3 ELECTRICITY LAYOUT DIAGRAM MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...
Page 226: Ii - Parts List
Chapter 3 II - PARTS LIST BB00 - Battery BB12 - + battery connection terminal BH12 - 12 fuse box (passenger compartment) BH28 - 28 fuse box (passenger compartment) BM34 - 34 fuse engine relay unit BSI1 - Built-in systems interface C001 - Diagnostic connector CA00...
Page 227 Chapter 3 3110 - Glove box lighting switch 3115 - Glove box lighting 4010 - Engine coolant level switch 4025 - Temperature sensor - engine coolant thermoswitch (gauge) 5015 - Windscreen wiper motor 5115 - Windscreen/rear screen washer pump 6202 - Front door lock assembly driver's side 6207 - Front door lock assembly passenger's side...
Page 228 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon...

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CITROEN XSARA Technical Training Manual

Chapter 2 : Built-In Systems Interface

Chapter 3 : Electricity

Chapter 1 : General

Chapter 4 : Lighting Function

Chapter 5 : On-Board Ecu Function

Chapter 6 : Electricity

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